Customer Case Study: STEG’s Digital Decarbonization Journey

As the Tunisian Company of Electricity and Gas (STEG) positions itself to become a key energy exchange hub between North Africa and Europe, it faces the complex challenge of meeting stringent international carbon standards. With the implementation of frameworks like the European Union’s Carbon Border Adjustment Mechanism (CBAM), utilities must provide verifiable, transparent, and auditable emissions data. STEG recognized that its traditional, hardware-dependent, and manual reporting methods were insufficient to keep pace with the speed and scale required by these evolving regulatory environments.

To bridge the gap between operational performance and regulatory compliance, STEG completed a pilot of CERius®, GE Vernova’s AI-powered carbon emissions management software. Rather than replacing existing legacy infrastructure, STEG deployed this solution to create a digital framework for emissions management. By leveraging advanced analytics and digital twin technology, the platform provides near real-time visibility into emissions across the power generation value chain, moving the company from manual, periodic reporting to a dynamic, predictive, and continuous monitoring model.

The adoption of CERius is expected to deliver significant operational and strategic value, most notably a projected 50% reduction in investment and maintenance costs compared to expanding physical monitoring infrastructure. Beyond cost savings, the automation of complex reporting tasks has replaced hours of manual labor with instantaneous analytics, enabling faster, data-driven decision-making. Most importantly, the comparative validation at the Sousse B power plant confirmed the solution’s high accuracy, helping to ensure that STEG can reliably align its emissions profile with international regulatory requirements.